docker

  1. K

    Toying with gvisor to run Docker inside an LXC container in a safe? way

    Hi, The other day I stumbled upon gvisor, which is a Google container driver which can be used with Docker that apparently uses an approach which is "mostly user-mode"; it emulates a Linux kernel in usermode, so it might be a way to run Docker containers inside an LXC container without nesting...
  2. M

    Docker daemon running in Alpine container. Solved?

    I was able to setup Alpine 3.10 to run Docker daemon and run hello-world container in it. Here are the steps. create container based on alpine-3.10-default_20190626_amd64.tar.xz (disk of size 0.5GB is enough for this little test) under Options enable Features 'keyctl' and 'Nesting' start the...
  3. S

    ARP table overflow - but only one neighbor

    Hi, i have some kind of legacy setup, which i created with Proxmox 5: I have a bunch of LXC containers which are privileged. Inside the LXC containers, i have installed a docker, and some docker containers. The networking of all this is managed by a VM with OPNsense. This worked fine with...
  4. L

    Docker on promox recommendations

    As others on this forum we've been considering for a while migrating some installations to docker containers and also like other I would hope to be able to do it within the Proxmox setup. I was wondering if the new Proxmox 6 brings any updates or changes to this. As far as I understand Proxmox...
  5. N

    Docker on LXC or VM?

    I'm considering running docker (and some docker containers) off of proxmox and wondered whether running docker inside an LXC or a VM would be better? I noticed from the following URL that it mentions that running docker in a VM would be better but gives no reason why this would be the case...
  6. L

    Thinking of switching from vSphere

    We have a small vSphere cluster in our lab but we're increasingly using Docker. This however isn't ideal since we'd like a GUI managed solution which natively supports Docker (like Synology's DSM). Does Proxmox have Docker support in the web interface? I see mention of it in 5.3 but I can't...
  7. D

    5.3 and unprivileged containers: docker works, mount nfs does not

    I upgraded from 5.2 to 5.3 and am trying to re-deploy self service unprivileged containers where users create an LXC container and then can do whatever they need to do (mostly installing docker, mounting file systems etc) First I am disabling all the magic hacks that were required to run docker...
  8. K

    5.3: Docker on LXC on ZFS

    Hi, I'm toying with running Docker inside a CentOS 7 LXC on a Proxmox whose storage is ZFS. The container has: $ cat /etc/pve/lxc/209.conf ... features: nesting=1 ... and is a privileged container. For starters, the only storage driver that allows me to start the Docker service is vfs. ZFS...
  9. K

    [SOLVED] LXC + docker, containerd cannot find /lib/modules/4.15.18-9-pve

    Hi all, Been stuck on this for quite some time and looking for some feedback. I'm running Proxmox 5.2 and I currently have 6 LXC Ubuntu 18.10 containers. 1 hosts rancher, 5 others host k8s worker/etcd/controller machines. I've been using the unsecure mode outlined here...
  10. N

    Docker not working on Alpine Linux LXC

    Hello, I would like to manage docker work on an alpine LXC container. I can not launch any image. docker: Error response from daemon: OCI runtime create failed: container_linux.go:348: starting container process caused "process_linux.go:402: container init caused \"rootfs_linux.go:58...
  11. M

    Homelab newbie advice

    Hey, I'm planning to setup a server running proxmox, but before I do, I'd like some advice for how I should arrange my disks. Today I'm running a Proliant Gen8 Microserver with 4x2TB, 1x128GB SSD drives using FreeNAS. But since I've been having trouble with FreeNAS and FreeBSD I'm looking two...
  12. C

    What's Promox's response to: Package and Run Virtual Machines as Docker Containers

    Hi, I'm running a KVM with Docker inside. To be precise it's RancherOS promising a fast and lightweight OS for Docker. This works fine. However I asked myself why not running KVM inside Docker and came accross another product: RancherVM. In this article the advantages of this concept are...
  13. K

    Making use of Local-LVM

    I have tried to understand how to make use of Local-LVM for LXC, but failing. Every time I attempt to create a new container, the only option is local as opposed to both local and local-lvm. Besides lxc, could I use local-lvm for a docker container? If so, how does one point a docker container...
  14. K

    Ideal LVM setup?

    I forgot about the easy of use of Proxmox when I was looking to make my laptop into a virtual host. I was getting ready to install PM5 when I started to wonder about how to optimally setup my 2TB SATA drive.
  15. R

    Possible to use btrfs inside container (not on host)?

    Hi there, I have been searching the internet for a couple of hours now and so far come up empty handed. I would like to create some containers and use Docker in them. I have this working by tweaking the /etc/pve/lxc/CTID.conf for the containers like so: lxc.aa_profile: unconfined...
  16. L

    Sharing Necessary Hardware with LXC and VM

    30 year computer guy has spent weeks playing and reading the fine manual and still has virtualization questions for people a whole lot smarter than I am: Short version - I need help sharing hardware (details below): ZFS to containers, Optical drives to any guest os (VM or LXC), dogging down...
  17. J

    Ran docker with namespace mapping in LXC encountered permission error

    Hi, Everyone I'm able to run docker container already, but recently, to avoid the security issue(http: docs.docker.com/engine/security/security/), I created a mapping user "dockremap" and add "--userns-remap=default" to the docker daemon, but now I'm experiencing permission issue, the error...
  18. E

    Change Proxmox Default Container Configs?

    Hi there, is it possible to change the default LXC container configs so that they support docker? I can go into each container manually but I create a lot of containers so is it possible to do so? Currently I do this: cd /etc/pve/lxc nano 100.conf Then I add these lines: lxc.aa_profile...
  19. N

    docker:write ... no space left on device

    I am using docker , directly on Debian host. Just run out of space docker: write /var/lib/docker/tmp/GetImageBlob955378987: no space left on device. What can eat my root , it is pretty fresh install root@pve:~/docker# df -kh Filesystem Size Used Avail Use% Mounted on udev...
  20. T

    Docker and Proxmox side-by-side

    Hello, I've currenty setup another proxmox instance, which has some special needs. Since we have heterogenous systems (existing containers) and new docker(-compose) based solutions we try to get them all on one system. Therefore i installed a fresh proxmox system. The second step was to install...